Prohibitionism is a legal experiment that has failed miserably in every single enterprise that our nation has attempted. Abortion, tobacco, liquor, weed, hard drugs, sex work and porn, firearms, gambling, political influence peddling, you name it...if it's a commodity people are willing to spend money on, prohibiting it with force of law has failed to prevent it, has spawned rampant corruption in government, and has caused powerful criminal organizations to prosper.
Plus, hypocrisy pisses me off.